Friday Forecast (Update)

6:31PM

DAYS 1-5 (MARCH 31-APRIL 4)
The main precipitation is arriving and will continue through Saturday morning with a fairly wide swath of mixed rain/snow/sleet, dominated by sleet across central and eastern MA, with more rain to the south and snow to the north (far northern MA into NH). The rain/mix/snow line will head back to the southeast as the storm pulls away Saturday. Snow/sleet totals (through tomorrow) still break down this way: Under 1 inch South Coast including Cape Cod, southern RI, and southern CT, 1-2 inches northeastern CT, northern RI, and nearby southern MA eastward to the South Shore up to about the Mass Pike, 2-4 inches just north of the Mass Pike to northeastern MA and NH Seacoast with the lower amounts favoring the coast from Boston to Cape Ann, and 4 inches or more north central MA into interior southern NH. Also looking for quite a bit of wind as the storm intensifies offshore Saturday with some minor coastal flooding at the time of the mid afternoon high tide. A weak disturbance will bring some cloudiness and possibly a passing rain/snow shower Sunday. High pressure moves in Monday with dry but chilly weather for the Red Sox home opener. But the continued active pattern allows the next storm to be here Tuesday with what looks like mainly rain but possibly some sleet.
TONIGHT: Overcast. Snow with some sleet mixed in at times NH and far northern MA, sleet dominating with occasional snow/rain mixed in through much of central and east central MA, and mainly rain to the south. Lows 30-38. Wind NE to E 5-15 MPH, higher gusts in coastal areas.
SATURDAY: Overcast. Precipitation very gradually tapering off west to east with snow/mix/rain line moving back to the south with time. Highs 34-41. Wind NE to N 10-20 MPH with gusts to 30 MPH inland, 20-30 MPH with gusts 40 MPH or greater coastal areas.
SUNDAY: Variably cloudy. Chance of a few rain/snow showers. Lows 30-38. Highs 38-45.
MONDAY: Sunny start, cloudy finish. Lows 28-35. Highs 44-51.
TUESDAY: Cloudy. Rain and possible sleet arriving. Lows 25-32. Highs 35-42.

DAYS 6-10 (APRIL 5-9)
Another period of unsettled weather April 6-8 which may include some mix/frozen as well as rain. Temperatures below normal.

DAYS 11-15 (APRIL 10-14)
A break in the active pattern as it turns drier but temperatures remain mostly below to near normal.

Friday Forecast (Preliminary)

7:29AM

DAYS 1-5 (MARCH 31-APRIL 4)
This is a preliminary post and will be followed later today but an updated one. For this post, there are not many changes being made except to shift the frozen rain/mix/snow line a little further south and tweak amounts accordingly. So, today still expecting precipitation to move eastward into the region during the day in a couple batches, fighting dry air, but with periods of snow, which will have difficulty accumulating when it falls as is typical for spring daytime snow. Most of this will occur in central MA and southwestern NH with a lighter mix/rain would likely occur in southern MA/CT/RI. Later in the day and into the evening a more solid area of precipitation is likely to move in from west to east, peaking during the overnight hours. During these hours is when the position and movement of the rain/mix/snow areas are most critical as this is when most of the snow accumulation would occur. It continues to be most likely that the most significant snow accumulation will occur away from the immediate coast and favor the higher elevations especially from central MA into southwestern NH, but this does not eliminate the possibility of significant accumulation elsewhere. Still going with colder scenario overall with the rain / narrow band of sleet / snow line moving up into the Mass Pike zone with areas to the south mainly rain for the heaviest precipitation and areas to the north staying as mainly snow. During Saturday as precipitation gradually lightens then diminishes from west to east, colder air will push this line back to the south when most of the accumulation to the south of Boston may occur. Current call on total snow accumulation: Under 2 inches South Coast including Cape Cod, southern RI, and southern CT, 2-4 inches northeastern CT, northern RI, and nearby southern MA eastward to the South Shore up to about the Mass Pike, 4 to 8 inches just north of the Mass Pike to northeastern MA and NH Seacoast with the lower amounts favoring the coast from Boston to Cape Ann, and 8 inches or more north central MA into interior southern NH. Also looking for quite a bit of wind as the storm intensifies offshore Saturday with some minor coastal flooding at the time of the mid afternoon high tide. A weak disturbance will bring some cloudiness and possibly a passing rain/snow shower Sunday. High pressure moves in Monday with dry but chilly weather for the Red Sox home opener. But the continued active pattern allows the next storm to be here Tuesday with what looks like mainly rain but possibly some sleet.
TODAY: Overcast. Periods of snow except mix/rain southern MA/CT/RI. Highs 34-40. Wind NE 5-15 MPH.
TONIGHT: Overcast. Snow except rain near South Coast then mix/change line advancing north into areas mentioned above. Lows 30-38. Wind NE to E 5-15 MPH, higher gusts in coastal areas.
SATURDAY: Overcast. Precipitation very gradually tapering off west to east with snow/mix/rain line moving back to the south with time. Highs 34-41. Wind NE to N 10-20 MPH with gusts to 30 MPH inland, 20-30 MPH with gusts 40 MPH or greater coastal areas.
SUNDAY: Variably cloudy. Chance of a few rain/snow showers. Lows 30-38. Highs 38-45.
MONDAY: Sunny start, cloudy finish. Lows 28-35. Highs 44-51.
TUESDAY: Cloudy. Rain and possible sleet arriving. Lows 25-32. Highs 35-42.

DAYS 6-10 (APRIL 5-9)
Another period of unsettled weather April 6-8 which may include some mix/frozen as well as rain. Temperatures below normal.

DAYS 11-15 (APRIL 10-14)
A break in the active pattern as it turns drier but temperatures remain mostly below to near normal.

Thursday Forecast

2:31AM

DAYS 1-5 (MARCH 30-APRIL 3)
A very nice day often precedes the arrival of a storm, and that will be the case today as high pressure dominates with plenty of sunshine. The March Lion will bring southern New England a storm of rain/mix/snow to end the month and linger into the opening hours of April – not really atypical of this time of year, and only ironically on the 20th anniversary of the much larger and more impacting “April Fools Storm” of 1997. With this system just a day away from arrival, it is now time to try to pin down some details. What I do know is that low pressure will approach from the west and track eastward, passing just south of New England, spreading a large shield of precipitation across the region during Friday, peaking Friday night, and lingering into Saturday. The critical part of the forecast will be the position of a rain/snow line during the event, as well as whether or not enough warm air gets in aloft to result in sleet rather than snow for a portion of the storm. Also, a strip of freezing rain needs to be considered as temperatures may be warm enough aloft for rain and cold enough at the surface for it to freeze. I don’t think this will occur over a widespread area, however. This is how I think it plays out: Friday, precipitation moves eastward during the day in a couple batches, fighting dry air, but with periods of snow, which will have difficulty accumulating when it falls as is typical for spring daytime snow. Lighter mix/rain would likely occur in southern MA/CT/RI. Later in the day and into the evening a more solid area of precipitation is likely to move in from west to east, peaking during the overnight hours. During these hours is when the position and movement of the rain/mix/snow areas are most critical as this is when most of the snow accumulation would occur. It continues to be most likely that the most significant snow accumulation will occur away from the immediate coast and favor the higher elevations especially from central MA into southwestern NH, but this does not eliminate the possibility of significant accumulation elsewhere. For now I am going with a slightly colder scenario with a rain/snow line and a narrow band of sleet moving into eastern MA and Seacoast NH to about I-95 and in most areas south of the Mass Pike (I-90) with a tendency for this to happen more quickly in valley areas and more slowly in higher elevations. Where a changeover occurs except a narrow band of sleet and also some freezing rain favoring the southern higher elevations of central MA. During Saturday, the rain/mix/snow line will waver around as precipitation gradually tapers off from west to east, finally becoming mostly patchy light rain/drizzle with a little mix to the north. Current call on total snow accumulation: Under 1 inch South Coast and most of southeastern MA, 1-3 inches NH Seacoast to Cape Ann MA to Boston to Providence westward to Hartford, 3-6 inches from just west of I-95 to near I-495 in northeastern MA down the I-95 belt to I-90 then westward along I-90, 6-10 inches central MA into interior southern NH with higher amounts possible in highest elevations. Some adjustments may still be made to this forecast! A weak disturbance will bring some cloudiness and possibly a passing rain/snow shower Sunday. High pressure moves in Monday with nice weather, and combined with afternoon opening day baseball at Fenway Park will make the recently-departed storm seem like a distant memory. Forecast details…
TODAY: Sunshine, high clouds late. Highs 44-51. Wind N 5-15 MPH.
TONIGHT: Increasing clouds. Lows 27-34. Wind light N to NE.
FRIDAY: Overcast. Periods of snow except mix/rain southern MA/CT/RI. Highs 34-40. Wind NE 5-15 MPH.
FRIDAY NIGHT: Overcast. Snow except rain near South Coast then mix/change line advancing north and northwest into areas mentioned above. Lows 30-38. Wind NE to E 5-15 MPH, higher gusts in coastal areas.
SATURDAY: Overcast. Precipitation tapering off west to east with snow/mix interior NH to central MA, rain elsewhere. Highs 35-42. Wind NE to N 10-20 MPH, higher gusts possible.
SUNDAY: Variably cloudy. Chance of a few rain/snow showers. Lows 30-38. Highs 38-45.
MONDAY: Mostly sunny. Lows 28-35. Highs 44-51.

DAYS 6-10 (APRIL 4-8)
Active pattern. Rain/sleet possible April 4. Additional unsettled weather April 6-8. Temperatures below normal.

DAYS 11-15 (APRIL 9-13)
A break in the active pattern as it turns drier but temperatures remain mostly below to near normal.

Wednesday Forecast

7:36AM

DAYS 1-5 (MARCH 29-APRIL 2)
If you’re looking for details on the snow/mix/rain threat for Friday and Saturday you’re come to the right place, and the wrong place. I’ll tell you what I think may happen, but you won’t get snowfall numbers from me until at least later today in comments and more likely tomorrow morning on the new entry. Why? Because I don’t know yet. First, let’s back up to today, which starts cloudy and damp but dries out as a north wind develops behind departing low pressure. Clouds will remain dominant but should start giving it up to more sun eventually. Thursday will be the “pick of the week” of you like fair weather as a narrow area of high pressure provides that. Low pressure approaches from the west Friday and will pass just south of New England Friday night and Saturday as it redevelops there. This will bring widespread precipitation including snow/mix/rain. Still working on details of how this system will impact this area specifically, but for now it looks like the greatest chance for accumulating snow will be Friday evening and night, away from the South Coast, and over higher elevations. Improvement is attempted on Sunday but may be thwarted by an additional disturbance bringing a chance of rain/snow showers to the area.
TODAY: Starting overcast with areas of fog. Breaking clouds, eventually more sun late especially west of Boston. Highs 45-52. Wind N increasing to 10-20 MPH and gusty.
TONIGHT: Partly cloudy to mostly clear. Lows 28-35. Wind NW 10-20 MPH, higher gusts.
THURSDAY: Mostly sunny. Lows 22-30. Highs 46-53.
FRIDAY: Cloudy. Snow/mix/rain develops day, continues at night when the greatest threat for snow is. Lows 22-30. Highs 35-42.
SATURDAY: Overcast. Snow/mix/rain mainly early morning then mostly mix/rain tapering off to drizzle. Lows 30-37. Highs 37-44.
SUNDAY: Mostly cloudy. Chance of rain/snow showers. Lows 32-40. Highs 40-47.

DAYS 6-10 (APRIL 3-7)
Pattern remains unsettled and cooler than normal. Next storm threat comes April 4-6.

DAYS 11-15 (APRIL 8-12)
Unsettled and cooler than normal pattern continues for this period as well.

Tuesday Forecast

7:44AM

DAYS 1-5 (MARCH 28-APRIL 1)
Forecast update. Additional discussion to come later.
TODAY: Cloudy. Patchy fog/drizzle. Risk of rain showers and a thunderstorm South Coast. Rain returns all areas by late day. Highs 38-45. Wind light variable.
TONIGHT: Cloudy. Episodes of rain showers and possible thunderstorms evening. Patchy fog. Lows 32-40. Wind light variable to N.
WEDNESDAY: Variably cloudy. Windy. Chance of rain/snow showers early. Highs 37-45. Wind N 10-20 MPH, higher gusts.
THURSDAY: Mostly sunny. Breezy. Lows 25-33. Highs 40-48.
FRIDAY: Increasing clouds. Chance of rain/mix/snow evening-night. Lows 25-33. Highs 38-45.
SATURDAY: Cloudy. Snow/mix/rain likely. Lows 29-35. Highs 35-42.

DAYS 6-10 (APRIL 2-6)
Unsettled weather may linger April 2 then return by April 5-6. Temperatures below normal.

DAYS 11-15 (APRIL 7-11)
A continuation of an unsettled and cooler than normal pattern is expected.

Monday Forecast

7:36AM

DAYS 1-5 (MARCH 27-31)
Low pressure brings rain today, but some of that may freeze on surfaces well west and north of Boston this morning. Another wave of low pressure arrives later Tuesday with more wet weather. Colder and drier air arrives as low pressure departs during midweek, but another low will approach from the southwest later Friday.
TODAY: Overcast with periods of rain, some freezing rain possible well north and west of Boston this morning. Highs 35-43. Wind NE to N 5-15 MPH, higher gusts.
TONIGHT: Cloudy. Patchy fog. Lows 30-37. Wind light NE to N.
TUESDAY: Cloudy. Risk of rain late day into night. Highs 35-43. Wind light variable.
WEDNESDAY: Variably cloudy. Windy. Chance of rain/snow showers early. Lows 28-35. Highs 37-45.
THURSDAY: Mostly sunny. Breezy. Lows 25-33. Highs 40-48.
FRIDAY: Increasing clouds. Chance of rain/mix/snow evening-night. Lows 25-33. Highs 38-45.

DAYS 6-10 (APRIL 1-4)
Rain/mix/snow likely April 1 as low pressure passes over or south of the region, then lingering unsettled weather April 2 making the first weekend of April quite unsettled. A break April 3 then more unsettled weather may arrive later April 4 into April 5 based on current timing Temperatures below normal.

DAYS 11-15 (APRIL 6-10)
A continuation of an unsettled and cooler than normal pattern is expected.

Sunday Forecast

2:59PM

DAYS 1-5 (MARCH 26-30)
No significant changes from what was posted yesterday. Unsettled pattern overall, but a little break to start out today with some sun before clouds return. Low pressure will track through the Great Lakes tonight and Monday but the warm sector of this system will be pinched off and stay to the south, keeping southern New England in the chilly air. The best threat of rain/mix will be during the day Monday. A follow up low pressure area will bring another risk for mainly rain late Tuesday. By Wednesday and Thursday, a colder and drier air mass arrives behind departing low pressure.
TODAY: Limited sun possible northern MA and southern NH mainly in the morning before clouds thicken up again. Rain possible southern MA, CT, and RI later in the day. Highs 38-45. Wind NE 5-15 MPH.
TONIGHT: Overcast with periods of rain, may mix with sleet/snow northern MA and southern NH. Lows 32-40. Wind NE 5-15 MPH, higher gusts.
MONDAY: Overcast with periods of rain, may mix with sleet/snow northern MA and southern NH. Highs 35-43. Wind NE to N 5-15 MPH, higher gusts.
TUESDAY: Cloudy. Risk of rain/mix mainly late day into night. Lows 28-35. Highs 35-43.
WEDNESDAY: Mostly cloudy. Windy. Chance of rain/snow showers early. Lows 28-35. Highs 37-45.
THURSDAY: Partly cloudy. Breezy. Lows 25-33. Highs 40-48.

DAYS 6-10 (MARCH 31-APRIL 4)
Dry and chilly March 31. Risk of unsettled weather at times April 1-4 with areas of low pressure passing south of or over the region again, with temperatures remaining somewhat below normal.

DAYS 11-15 (APRIL 5-9)
A continuation of an unsettled and cooler than normal pattern is expected.

Saturday Forecast

1:45PM

DAYS 1-5 (MARCH 25-29)
People say the weather has been “crazy”. They are wrong. The type of weather we have had, even the mild winter months followed by the cold March, are not really atypical. The glorification of weather in the news is the reason for many false misconceptions and resultant labeling of everyday weather as “crazy”. In the mean time, we’ll go on forecasting whatever you want to call it. And there are not many changes to the previous update as we watch a frontal boundary sink to the south and the colder side be our lot for the next few days here in southern New England. Precipitation will be mostly in the form of rain, and rather limited, during the weekend, with a long period of dry weather for Sunday with even a little sun possible. A more widespread shot of rain with some potential for mix/snow arrives on Monday, with yet another one later Tuesday. By Wednesday, we should find ourselves on the back-side of a departing and intensifying low pressure system which will pull a month-ending shot of cold air into the region.
THIS AFTERNOON: Cloudy. A few periods of rain, may mix with or turn to sleet/snow northern MA and southern NH at times with minor accumulation. Temperatures fall into the 30s. Wind NE 5-15 MPH.
TONIGHT: Rain mainly southern areas early otherwise cloudy, though clouds may thin out northern MA and southern NH. Lows 29-38 north to south. Wind NE 5-15 MPH.
SUNDAY: Limited sun possible northern MA and southern NH mainly in the morning before clouds thicken up again. Rain possible southern MA, CT, and RI later in the day. Highs 38-45. Wind NE 5-15 MPH.
SUNDAY NIGHT: Overcast with periods of rain, may mix with sleet/snow northern MA and southern NH. Lows 32-40. Wind NE 5-15 MPH, higher gusts.
MONDAY: Overcast with periods of rain, may mix with sleet/snow northern MA and southern NH. Highs 35-43. Wind NE to N 5-15 MPH, higher gusts.
TUESDAY: Cloudy. Risk of rain/mix mainly late day into night. Lows 28-35. Highs 35-43.
WEDNESDAY: Mostly cloudy. Windy. Chance of rain/snow showers early. Lows 28-35. Highs 37-45.

DAYS 6-10 (MARCH 30-APRIL 3)
Dry, colder March 30-31. Risk of unsettled weather at times April 1-3 with areas of low pressure passing south of or over the region again, with temperatures remaining somewhat below normal.

DAYS 11-15 (APRIL 4-8)
A continuation of an unsettled and cooler than normal pattern is expected.

Friday Forecast

7:40AM

DAYS 1-5 (MARCH 24-28)
A long stretch of unsettled weather gets underway today with the approach of a warm front. This front pushes through part of the region by this evening into the early hours of Saturday before heading back to the south with a push from high pressure in eastern Canada. It will then spend much of the weekend and early next week just south of New England as low pressure disturbances run along it.
TODAY: Mostly cloudy. Scattered light snow/sleet/rain mainly midday and afternoon. Highs 38-45. Wind SE 5-15 MPH increasing to 10-20 MPH with higher gusts.
TONIGHT: Mostly cloudy. Temperatures steady 38-45. Wind S 10-20 MPH.
SATURDAY: Mostly cloudy. Slight chance of light rain. Highs 45-53 early, then cooler in the afternoon. Wind SW 5-15 MPH morning, shifting to NE from north to south during the day.
SATURDAY NIGHT: Cloudy. Lows 30-38. Wind NE 5-15 MPH.
SUNDAY: Cloudy. Chance of rain/mix/snow mainly afternoon. Highs 38-45. Wind NE to E 5-15 MPH.
MONDAY: Cloudy. Periods of rain/mix likely. Lows 33-40. Highs 40-47.
TUESDAY: Cloudy. Periods of rain possible. Lows 33-40. Highs 40-47.

DAYS 6-10 (MARCH 29-APRIL 2)
Unsettled weather continues episodes of rain/mix/snow possible, especially March 29 and again near the end of the period. Temperatures below normal.

DAYS 11-15 (APRIL 3-7)
No big changes expected here as an overall unsettled weather and below normal temperature regime continues.

Thursday Forecast

7:22AM

DAYS 1-5 (MARCH 23-27)
This is the last day of full sun for a long while, though it will be cold. Enjoy it anyway. A long stretch of unsettled weather begins Friday as a warm front approaches, only makes it part of the way into southern New England, then pushes back to the south on Saturday and hangs out there for many days as an avenue for waves of low pressure.
TODAY: Sunny. Highs 30-37. Wind NW 15-25 MPH with higher gusts, diminishing slowly.
TONIGHT: Partly cloudy. Lows 18-25. Wind W 5-15 MPH.
FRIDAY: Mostly cloudy. Scattered light snow/sleet/rain mainly midday and afternoon. Highs 38-45. Wind SE 5-15 MPH increasing to 10-20 MPH with higher gusts.
FRIDAY NIGHT: Cloudy. Chance of light rain early. Temperatures steady 38-45. Wind S 10-20 MPH.
SATURDAY: Mostly cloudy. Slight chance of light rain. Highs 45-53 early, then cooler in the afternoon. Wind SW 5-15 MPH morning, shifting to NE from north to south during the day.
SUNDAY: Cloudy. Chance of rain/mix/snow mainly afternoon. Lows 30-38. Highs 38-45.
MONDAY: Cloudy. Periods of rain/mix/snow likely.

DAYS 6-10 (MARCH 28-APRIL 1)
Unsettled weather continues episodes of rain/mix/snow possible. Temperatures below normal.

DAYS 11-15 (APRIL 2-6)
No big changes expected here as an overall unsettled weather and below normal temperature regime hangs on.